Prepared out of the box with a minimum set of defaults that let you drop
it into your app, style it to your taste and not worry about the little
details.
{{#ember as |ember|}}
With Ember for Ember
Built on top of other ember addons, it provides an API based on contextual
components that feels natural to use and style.
Low level primitives
Designed as a building block for your own components, it has no styles and
makes no assumptions. It gives you the right primitives to taylor your
perfect widget.